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Thread: Driveshaft Out - should I or shouldn't I?

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  1. #1
    Join Date
    Mar 2004
    Posts
    454

    Default Driveshaft Out - should I or shouldn't I?

    525i, 132K Miles


    Well after having a rumble/lateral vibration that seemed like driveline (30-60mph - felt side to side motion at driver and passenger seat - not much in steering wheel), I removed the drive shaft (oh what a pleasure - that was fun, certainly the exhaust removal - couldn't have too many floor jacks for that job).

    After inspection - the U and CV joints seem fine, the center bearing seems a little loose (rubber is fine) and the guibo seems okay (some tears). When pushing on the transmission laterally (tapping with a rubber mallet), I felt the vibration that I felt while driving - so pretty sure all the tranny and engine mounts are due for replacement and that is the likely culprit for the vibration. (Shogun, you were right again - saw your recommendation in other posts)

    So now the question - since I am doing all engine and tranny mounts, center bearing, guibo, dogbones, tranny output seal (it is weeping), should I just go ahead and replace the rear sub frame mounts or fill them with urethane?

    Also, the rear control arm bushings, should they just be summarily replaced - which look like a real bugger to do?

    My front end is all new Lemforder (again), so time to make the car "matched"

    Thanks,
    Scott
    1995 BMW 525i w/139K miles, EAT Chip - (Gone)
    07 525i 22K, 07 328xi (41K)
    1982 Mazda RX-7 w/147K miles (Back again!)

  2. #2
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default

    I looked at mine and determined that they were not bad enough to replace. No tears and nothing squished looking so that vs the effort of replacing says they are still good.

    lol
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  3. #3
    Join Date
    Mar 2004
    Posts
    454

    Default

    Quote Originally Posted by 632 Regal View Post
    I looked at mine and determined that they were not bad enough to replace. No tears and nothing squished looking so that vs the effort of replacing says they are still good.

    lol
    Thanks kind sir!

    Scott
    1995 BMW 525i w/139K miles, EAT Chip - (Gone)
    07 525i 22K, 07 328xi (41K)
    1982 Mazda RX-7 w/147K miles (Back again!)

  4. #4
    Join Date
    Mar 2004
    Posts
    454

    Default

    Well it looks like my driveshaft u-joint is bad - it is almost like it has detents in it to move to center (both axes). Only noticed this after separation to put on new center bearing. Crap - this is gonna cost. Tell me that I am missing something and that it should act this way - please....

    I see that it is not a good thing to have the u-joint replaced - looks like BMA or Arizona Autohaus for a new driveshaft - will search for rebuilt but not feeling the love today...


    Scott.

    PS - found that engine mounts were compressed about 1/4", tranny mounts were squashed quite a bit and one front tranny mount was not even tight.
    Last edited by Scott C; 05-31-2009 at 11:40 AM.
    1995 BMW 525i w/139K miles, EAT Chip - (Gone)
    07 525i 22K, 07 328xi (41K)
    1982 Mazda RX-7 w/147K miles (Back again!)

  5. #5
    Join Date
    Mar 2004
    Posts
    454

    Default

    Found a place in texas that has shipped one out for about $400. I found several places that had them for about $340 - $400+++ but this place seemed real (I talked with a gentleman there - precision (not Chinese) U-Joints, do this all the time, had them in stock - shipped fully assembled with center bearing installed). Gonna be painful waiting for this to show up - guess I can finish the tranny seal as well as the dogbones.

    Sometimes I talk to myself
    1995 BMW 525i w/139K miles, EAT Chip - (Gone)
    07 525i 22K, 07 328xi (41K)
    1982 Mazda RX-7 w/147K miles (Back again!)

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